E
Find the difference between
(2x - 5) and (3 – 9x)

Simplifying

(2x + -5) + -1(3 + -9x) = 0

Reorder the terms:

(-5 + 2x) + -1(3 + -9x) = 0

Remove parenthesis around (-5 + 2x)

-5 + 2x + -1(3 + -9x) = 0

-5 + 2x + (3 * -1 + -9x * -1) = 0

-5 + 2x + (-3 + 9x) = 0

Reorder the terms:

-5 + -3 + 2x + 9x = 0

Combine like terms: -5 + -3 = -8

-8 + 2x + 9x = 0

Combine like terms: 2x + 9x = 11x

-8 + 11x = 0

Solving

-8 + 11x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '8' to each side of the equation.

-8 + 8 + 11x = 0 + 8

Combine like terms: -8 + 8 = 0

0 + 11x = 0 + 8

11x = 0 + 8

Combine like terms: 0 + 8 = 8

11x = 8

Divide each side by '11'.

x = 0.7272727273

Simplifying

x = 0.7272727273

Step-by-step explanation:

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.